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Question: 1a new element has been discovered on a foreign planet...

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1).A new element has been discovered on a foreign planet. It seems to have 2 stable isotopes. Ezium-98 is 66.66% abundant. What is the mass of the other isotope if the atomic mass is 99.33 amu? Write it in isotopic notation.

2).Magnesium has 3 stable isotopes. 24Mg, 25Mg, and 26Mg. 25Mg is 10.0% abundant. What are the abundances of the other 2 isotopes? Make sure to label which isotope is which answer.




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